IPC symbol, e.g. C08B 11/193:

Language:
DE EN FR

IPC edition/version:
2025.01(current) 2024.01 2023.01 2022.01 2021.01 2020.01 2019.01 2018.01 2017.01 2016.01 2015.01 2014.01 2013.01 2012.01 2011.01 2010.01 2009.01 2008.04 2008.01 2007.10 2007.01 2006.01 7 (valid from 01.2000) 6 (valid from 01.1995) 5 (valid from 01.1990) 4 (valid from 01.1985) 3 (valid from 01.1980) 2 (valid from 07.1974) 1 (valid from 09.1968)

Maximum dot hierarchy:
main groups only 1-dot subgroup 2-dot subgroup 3-dot subgroup 4-dot subgroup 5-dot subgroup 6-dot subgroup 7-dot subgroup 8-dot subgroup 9-dot subgroup 10-dot subgroup 11-dot subgroup 12-dot subgroup (from 2016) 13-dot subgroup (from 2016) 14-dot subgroup (from 2016)

Hierarchy

DEKLA groups

Notes

Subclass indexes

Catchwords